You have to give the devil his due but I’m not sure I can agree with this assessment of Kushner just yet. As someone says in the replies to this post, Kushner was largely responsible for the Abraham Accords, which as I recall badly shunted the Palestinians aside during the negotiations, and contributed significantly to the discontent that resulted in October 7th. Additionally, we’ve yet to see what will come of the current cease fire. So I am reserving judgment.
Meanwhile, a real foreign achievement for the United States would I think involve pivoting away from the Middle East toward Asia, which has been the case for decades.